“If you’re not getting at least 10 of those a game, as a middle linebacker in the NFL, that means you didn’t play that day,” Plummer said. “I played 250 games. So (with) at least 10 a game, that’s 2,500 concussions.”

“After Junior, my wife said, ‘Dude, you got to do something; I don’t want you to be the next Junior Seau.’…

“It was not overnight, by any stretch of the imagination,” Plummer said. “It was a long, slow process. But it wasn’t a long, slow, arduous process. It’s not like it was difficult to go to yoga. It’s not like it was difficult to go outside and listen to classical music while gardening.

“But I felt myself not only getting better at the time I was doing those things, but it then became the cumulative effect of, ‘Hey, there’ve been a few days where I didn’t have a headache.’ Or, ‘There’ve been a few days where I’ve been able to sleep through the night.’ And those were momentous occasions for me. It’s been amazing that I literally feel like a new man.”